Curtain-rod.



C. W. KIRSCH.

CURTAIN ROD.

APPLICATION men JULY 24. 1916.

Patented Nov; 6, 1917.

A IIIIIIIIIIII/ .5 'IIIIIIIIIIIIIIIIIIIIII CHARLES w.

KIRSCH, OF STURGIS, MICHIGAN, ASSIGNOR TO KIBSCH MANUFACTURING 00., OF STURGIS, MICHIGAN, A CORPORATION OF MICHIGAN.

CURTAIN-ROD.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed July 24. 1916. Serial No. 111,008.

To all whom it may concern:

Be it known that I, CHARLES W. Krnscn, citizen of the United States, residing at Sturgis, in the county of St. Joseph and State of Michigan, have invented certain new and useful Improvements in Curtain- Rods; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the .art to which it appertains to make-and usethe same.

My invention relates to curtain rods and more particularly to means for interlocking telescopically interfitting members of curtain rods against relative longitudinal movement. The main object of the invention is to provide simple and efiicient interengaging formations on the telescopically interfitting parts of curtain rods whereby to render them inseparable and incapable of relative longitudinalmovement.

A further object of the invention is to provide a channel-shaped curtain rod built up of two or more telescopically interfitting members adjusted to provide rods of desired lengths, the members whereof are engaged with each other in such a manner that the parts are held against relative longitudinal movement.

My invention relates more particularly to curtain rods consisting of a plurality of telescopically interfitting members having longitudinally extending edge flanges, and consists essentially in deforming the said edges laterally of their length to provide interengaging formations on said members which will efiiciently prevent the slightest relative longitudinal movement thereof.

My invention will be more readily understood by reference to the accompanying drawings forming part of this specification, and in which I have illustrated a sectional telescopic curtain rod having the several parts locked against relative longitudinal movement in accordance with my invention.

In said drawings:

Figure 1 is a perspective view of a sectional tubular curtain and having parts adapted to beheld together by indentations formed in accordance with my invention.

Fig. 2 is a fragmentary rear elevation of the rod illustrating the means by which I hold the several parts of the rod against relative longitudinal movement.

as shown in Fig. 4, having inturned longitudinal flanges C and D respectively,

the end members being adapted to telescopiinvention particu cally receive the ends of the middle member within the same. The inner opposed edges of the flanges G and D border a longitudinal slot in each member, and the inner edges of the telescopically interfitting members are, as shown, substantially coincident.

The two end members A and the middle member B are adapted to be relatively 1ongitudinally adjusted to produce a curtain rod to correspond with and fit upon the fixed rod supports F mounted on a window-casing, orthe like, and when this has been accomplished I lock the telescopic members together to hold them permanently in such adjusted positions.

To accomplish this interlocking of the tubular members I indent the' overlapping edges thereof, as shown at G, by forcing the 'outeredge D inwardly against the inner edge C and causingthe inner edge to be likewise indented. I thereby form a projection H on one of the members and an indentation or recess J in the opposed surface of the other member to receive said projection, or in other words, I provide a pro]ection on one member and cotiperating shoulders on the other member which prevent any relative longitudinal movement. of the two members. As the metal. of which the rod parts are formed is quite thin, these indentations are very easily formed by means of a small screw-driver or any similar tool, without afi'ecting the outer side of the curtain rod. As I prefer to make these indentations quite small I eral of them on each e ge of the slot at each referably make sevtelescopic joint or connection in the curtain rod. The several parts of the rod are thus securely held against longitudinal movement relatively to each other, but, as the in- 5 dentations are not deep the parts of the rod can be separated if desired by applying sufficient-force to pry the contacting or overlapping edges sufiiciently to disengage the pro ections on the outer edge from the in- 10 dentations on the inner edge.

I claim;

A curtain rod comprising telescopically interengaged hollow members having opposed overhanging edge-flanges, the flanges 115 of the larger overlapping the flanges of the smaller of said members and the flanges of both members bordering a longitudinal slot, and -interlocking formations permanently securing said members against relative telescopic movement extending laterally in 20 Wardly from the edges of the overla ped flanges and constituting distortions o the same.

In testimony whereof I have signed my name in presence of two subscribing wit- 5 nesses.

7 CHARLES W. KIRSCH. Witnesses:

THADDEUS S. WAIT, ARTHUR N. EVERS. 

